413
FZUS51 KBOX 270503
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 AM EDT WED MAY 27 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-271800-
103 AM EDT WED MAY 27 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
WEAK HIGH PRES MOVES OFFSHORE TONIGHT. A COLD FRONT WILL DROP S INTO
THE WATERS FROM THE N WED AFTERNOON/EVENING WHILE A LOW PRES CROSS
NOVA SCOTIA. ANOTHER COLD FRONT AND ASSOCIATED LOW PRES SHOULD CROSS
THE WATERS LATER FRI INTO SAT.
ANZ250-271800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 3 FT AT
8 SECONDS.
WED
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
WED NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW 2 FT
AT 3 SECONDS AND NE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
THU NIGHT
N WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 2 FT AT 6 SECONDS AND SW 1 FOOT AT 5 SECONDS. A CHANCE OF
SHOWERS IN THE EVENING.
FRI
N WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 6 SECONDS AND SW 1 FOOT AT
7 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS AFTER
MIDNIGHT.
SAT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. SHOWERS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 5 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING W AROUND 10 KT. SEAS 3 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-271800-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 3 SECONDS AND E 2 FT AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS
AND E 2 FT AT 8 SECONDS.
WED NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 2 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS. A CHANCE OF
SHOWERS IN THE AFTERNOON.
THU NIGHT
N WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: NE 1 FOOT AT 6 SECONDS AND NE 1 FOOT AT 9 SECONDS. A
CHANCE OF SHOWERS IN THE EVENING.
FRI
N WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL:
NE 1 FOOT AT 6 SECONDS AND S 1 FOOT AT 8 SECONDS, BECOMING E 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 6 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
FRI NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS AFTER MIDNIGHT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO
4 FT. SHOWERS.
SAT NIGHT
N WINDS 20 TO 25 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING NW AROUND 10 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-271800-
CAPE COD BAY-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 7 SECONDS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E
1 FOOT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
THU NIGHT
N WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
FRI
N WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 5 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS AFTER MIDNIGHT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING W 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-271800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 3 FT AT
8 SECONDS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW
4 FT AT 5 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG IN THE
AFTERNOON WITH VSBY 1 TO 3 NM.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: W 4 FT AT
6 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 3 FT
AT 6 SECONDS AND NE 2 FT AT 7 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 6 SECONDS AND S 2 FT AT 7 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND S 2 FT AT 8 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS AFTER MIDNIGHT.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. SHOWERS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING W AROUND 10 KT. SEAS 3 TO 5 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-271800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
WED
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT
AT 7 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING N AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
THU
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 6 SECONDS AND NE 2 FT AT 7 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND S 2 FT AT 7 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 7 SECONDS AND SW 2 FT AT
8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT.
SAT
NW WINDS 20 TO 25 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 20 TO 25 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT, BECOMING W 10 TO
15 KT. SEAS 3 TO 5 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-271800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS. PATCHY FOG.
VSBY 1 TO 3 NM.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING N AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND SE 2 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.
THU
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 7 SECONDS AND NE 1 FOOT AT 4 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 8 SECONDS AND NE 1 FOOT AT 6 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. SHOWERS LIKELY AFTER MIDNIGHT.
SAT
NW WINDS 20 TO 25 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY.
SAT NIGHT THROUGH SUN NIGHT
W WINDS 20 TO 25 KT. SEAS 2 TO
4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-271800-
NANTUCKET SOUND-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT
4 SECONDS AND SE 1 FOOT AT 7 SECONDS. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT
AT 6 SECONDS AND W 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 1 FOOT AT 4 SECONDS AND SW 1 FOOT AT 7 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 6 SECONDS AND SW 1 FOOT AT
8 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS AFTER MIDNIGHT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
NW WINDS 15 TO 20 KT, BECOMING W 10 TO
15 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-271800-
VINEYARD SOUND-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND
E 1 FOOT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 6 SECONDS AND E 1 FOOT AT 7 SECONDS. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT
AT 6 SECONDS AND NE 1 FOOT AT 6 SECONDS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
THU NIGHT
N WINDS AROUND 5 KT, INCREASING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND
NE 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 8 SECONDS
AND NE 1 FOOT AT 3 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
SAT
NW WINDS 20 TO 25 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-271800-
BUZZARDS BAY-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: N
1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 5 SECONDS. A CHANCE OF
SHOWERS IN THE AFTERNOON.
THU NIGHT
N WINDS AROUND 5 KT. SEAS AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: NE 1 FOOT AT 2 SECONDS
AND SW 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI
NW WINDS AROUND 5 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT IN THE
AFTERNOON. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT
7 SECONDS, BECOMING SW 2 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS LIKELY AFTER MIDNIGHT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
SAT NIGHT THROUGH SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-271800-
RHODE ISLAND SOUND-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT
7 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG IN THE EVENING
WITH VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 7 SECONDS AND E 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
THU NIGHT
NE WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT
AT 3 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT
AT 8 SECONDS AND NE 1 FOOT AT 3 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. SHOWERS LIKELY
AFTER MIDNIGHT.
SAT
NW WINDS 20 TO 25 KT. SEAS 2 TO 3 FT. SHOWERS LIKELY.
SAT NIGHT THROUGH SUN NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-271800-
BLOCK ISLAND SOUND-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT
AT 6 SECONDS AND SE 2 FT AT 8 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT
AT 7 SECONDS AND E 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
AFTERNOON.
THU NIGHT
N WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND E 1 FOOT
AT 5 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT
AT 7 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY AFTER MIDNIGHT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-271800-
BOSTON HARBOR-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
WED
W WINDS AROUND 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
THU
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. WAVES
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. A CHANCE OF
SHOWERS IN THE AFTERNOON.
THU NIGHT
N WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS. A CHANCE
OF SHOWERS IN THE EVENING.
FRI
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS. A CHANCE OF SHOWERS IN THE AFTERNOON.
FRI NIGHT
S WINDS 10 TO 15 KT, BECOMING SW WITH GUSTS UP TO
20 KT AFTER MIDNIGHT. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT
AFTER MIDNIGHT. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
AFTER MIDNIGHT.
SAT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
3 FT. SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS UP
TO 25 KT. WAVES AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-271800-
NARRAGANSETT BAY-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS AROUND 10 KT. WAVES AROUND 2 FT.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES AROUND 2 FT.
WED NIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. WAVES
AROUND 2 FT.
THU
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF SHOWERS
IN THE AFTERNOON.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS IN THE EVENING.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. WAVES AROUND 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT. SHOWERS LIKELY AFTER MIDNIGHT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY.
SAT NIGHT THROUGH SUN NIGHT
W WINDS 15 TO 20 KT. WAVES 2 TO
3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-271800-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT.
SEAS AROUND 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 3 FT
AT 8 SECONDS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 3 FT AT 7 SECONDS.
WED NIGHT
NW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 2 FT AT
8 SECONDS.
THU
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT
5 SECONDS AND S 2 FT AT 7 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 6 SECONDS AND S 1 FOOT AT 8 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS AND S 1 FOOT AT
7 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS
IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT.
SAT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. SHOWERS.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. A CHANCE OF SHOWERS.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-271800-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. PATCHY FOG.
VSBY 1 NM OR LESS.
WED
SW WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS AROUND
4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND E 2 FT AT 7 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE
AFTERNOON.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
N AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: W 4 FT AT
7 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 6 SECONDS AND NE 3 FT AT 8 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE
4 FT AT 6 SECONDS AND S 2 FT AT 7 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 3 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND S 2 FT AT
8 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS AFTER MIDNIGHT.
SAT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. SHOWERS.
SAT NIGHT
N WINDS 20 TO 25 KT. SEAS 5 TO 8 FT. A CHANCE OF
SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT.
SUN NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-271800-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 4 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: W 3 FT
AT 7 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG. VSBY 1 TO
3 NM.
THU
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT AT
6 SECONDS AND E 2 FT AT 9 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE
3 FT AT 7 SECONDS AND SW 3 FT AT 7 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND S 2 FT AT
8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. SHOWERS LIKELY AFTER MIDNIGHT.
SAT
W WINDS 20 TO 25 KT. SEAS 4 TO 5 FT. SHOWERS LIKELY.
SAT NIGHT AND SUN
N WINDS 20 TO 25 KT, BECOMING NW 15 TO
20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-271800-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 AM EDT WED MAY 27 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING NW AFTER MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS. PATCHY FOG. VSBY 1 NM
OR LESS.
THU
N WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: NW 3 FT
AT 6 SECONDS AND E 2 FT AT 8 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL:
NE 2 FT AT 4 SECONDS AND S 2 FT AT 7 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. SEAS AROUND 3 FT. WAVE DETAIL: NE 2 FT AT 8 SECONDS
AND S 2 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
SAT
NW WINDS 20 TO 25 KT. SEAS AROUND 4 FT. A CHANCE OF
SHOWERS.
SAT NIGHT THROUGH SUN NIGHT
W WINDS 20 TO 25 KT. SEAS 4 TO
6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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